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The Structure of the Bacterial Nucleoid

  • Kjell Kleppe
  • Ivar Lossius
  • Rein Aasland
  • Knut Sjåstad
  • Askild Holck
  • Lars Haarr
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 179)

Abstract

In prokaryotic organisms the chromosome is present in a nucleuslike body termed the nucleoid (1, 2). The nuclear membrane is, however, absent in prokaryotic cells. Most of our knowledge concerning the structure and organization of the nucleoid comes from studies with Escherichia coli. The condensed form of the chromosome can be visualized by phase contrast microscopy directly in living prokaryotic cells (3–5). The mode of division of the nucleoid can also clearly be seen. Escherichia coli cells growing in a minimal medium contain one or two separate nucleoids per cell. When this organism is grown in a rich medium the cells possess two nucleoids per cell.

Keywords

High Salt Attachment Point Prokaryotic Cell Sedimentation Coefficient Methyl Methanesulfonate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • Kjell Kleppe
    • 1
  • Ivar Lossius
    • 1
  • Rein Aasland
    • 1
  • Knut Sjåstad
    • 1
  • Askild Holck
    • 1
  • Lars Haarr
    • 1
  1. 1.Department of BiochemistryUniversity of BergenBergenNorway

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